This resonates. How would it work in practice though? Many people want to contribute, but they are stuck as they have to provide for their family.
Also, how do we know what to work on? Someone linked to FSF projects - are there other lists, places we can go to, to find actual tasks/projects to work on? Unless there are incentives (not money/fame, but seeing our efforts put to good use/getting feedback etc) people would lose interest. It would be awesome if we can curate such a list - pharma, food/agriculture, mental health etc. And break down this list into smaller, manageable tasks. I guess many people can find 5-10 hours a week to contribute.